High-performance hydraulic jacking mechanism

Abstract

The utility model relates to the technical field of hydraulic cylinders, and provides a high-performance hydraulic jacking mechanism which comprises a hydraulic pump, a flow divider and two hydraulic cylinders, the output end of the hydraulic pump is connected with a main pipeline, the input ends of the two hydraulic cylinders are respectively connected with a branch pipeline, and the two branch pipelines are connected with the main pipeline through the flow divider; the single hydraulic pump serves two or more hydraulic cylinders at the same time, pressure oil output by the main pipeline of the hydraulic pump is distributed to different branch pipelines through the flow divider, then oil way communication between the single hydraulic pump and the multiple hydraulic cylinders is achieved, the proportion of the flow divider to the flow of the pressure oil can be controlled through the hand-operated valve, and therefore the flow of the pressure oil can be controlled. The hydraulic oil pressure proportion of the multiple hydraulic cylinders can be balanced, stress balance during jacking of the aerial work platform is achieved, the proportion of the pressure oil flow of the hydraulic cylinders can be selectively adjusted according to the load bearing conditions of the different hydraulic cylinders, and the problem that in the prior art, the jacking heights or force of the different jacking oil cylinders is not uniform is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic cylinders, and in particular to a high-performance hydraulic jacking mechanism. Background Art

[0002] Aerial work platforms are products that serve various industries for high-altitude operations, such as high-altitude operations, equipment installation, and maintenance, and other mobile high-altitude operations.

[0003] When constructing the facade of a high-rise building, it is usually necessary to simultaneously lift the work platform with multiple lifting cylinders. For example, the announcement number CN212249116U discloses a hydraulic lifting protection platform, including a frame, a plurality of guide rail mechanisms and a plurality of floor slabs. The outer side of each floor slab is fixedly installed with a plurality of wall-attached seat structures, and the plurality of guide rail mechanisms are respectively slidably installed on the plurality of wall-attached seat structures. Two hydraulic cylinders are fixedly installed on both sides of the top of each wall-attached seat structure, and a jacking head mechanism that cooperates with the guide rail mechanism is fixedly installed on the top of each hydraulic cylinder. However, the above-mentioned lifting method using multiple cylinders may cause uneven lifting height or force of some lifting cylinders, resulting in uneven lifting force on some of the platform, causing the problem of eccentric load offset. In order to solve this problem, the utility model proposes a high-performance hydraulic lifting mechanism. Utility Model Content

[0004] The utility model provides a high-performance hydraulic jacking mechanism, which solves the problem of uneven jacking heights or forces of different jacking oil cylinders in the prior art.

[0005] The technical solution of the utility model is as follows: a high-performance hydraulic jacking mechanism, including a hydraulic pump, a diverter and two hydraulic cylinders, the output end of the hydraulic pump is connected to the main line, the input ends of the two hydraulic cylinders are respectively connected to branch lines, the two branch lines are connected to the main line through the diverter, the diverter is provided with a manual valve component for adjusting the flow of the two branch lines, the top of the diverter is fixed with a bracket, and the bracket is provided with a pair of locking components for locking the two manual valve components.

[0006] Preferably, the manual valve member comprises a valve stem, a knob is fixed on the top of the valve stem, and a plurality of guide holes are formed on the knob.

[0007] Preferably, the locking component comprises a sliding rod, a fixing plate is fixed to the bottom end of the sliding rod, a plurality of inserting rods are fixed to the bottom surface of the fixing plate, and the sliding rod is elastically connected to the bracket via an elastic member.

[0008] Preferably, the insertion rods on the bottom surface of the fixing plate correspond one to one with the guide holes on the knob and are vertically slidably matched.

[0009] Preferably, the bracket is provided with a through hole for the slide rod to pass vertically, a plurality of annularly distributed clamping strips are fixed to the top surface of the fixed plate, and the bottom surface of the bracket is provided with a clamping groove engaged with the clamping strip.

[0010] Preferably, the elastic member comprises a spring, a pressure plate is fixed to the top end of the spring, the pressure plate is fixed outside the slide rod, a turntable is fixed to the bottom end of the spring, and the turntable is rotatably connected to the bracket.

[0011] Preferably, the turntable is an annular structure, and the turntable coincides with the axis of the through hole.

[0012] Preferably, a handle is fixed to the top end of the slide rod, and the handle is perpendicular to the axial direction of the slide rod.

[0013] Preferably, the main pipe is provided with a pressure gauge for detecting the pressure in the main pipe.

[0014] Preferably, the flow divider is a three-way interface, and the three-way interface is connected to the main pipeline and the two branch pipelines respectively.

[0015] The beneficial effects of the utility model are:

[0016] 1. The utility model uses a single hydraulic pump to simultaneously serve two or more hydraulic cylinders, and the flow divider distributes the pressure oil output from the main pipeline of the hydraulic pump to different branch pipelines, thereby realizing the oil circuit connection between the single hydraulic pump and multiple hydraulic cylinders. The flow divider can control the ratio of the pressure oil flow through the manual valve, so that the hydraulic oil pressure ratio of multiple hydraulic cylinders can be balanced, thereby achieving balanced force when the aerial work platform is lifted. The ratio of the pressure oil flow of each hydraulic cylinder can also be selectively adjusted according to the load conditions of different hydraulic cylinders, solving the problem of uneven lifting height or force of different lifting cylinders in the prior art;

[0017] 2. In the utility model, by pressing the handle downward, the pressure plate on the slide rod compresses the spring and slides downward in the through hole, so that the card strip on the fixed plate is disengaged from the card slot on the bottom surface of the bracket, and then the handle can be turned to make the slide rod drive the fixed plate to rotate, and the plug rod on the bottom surface of the fixed plate turns the knob to adjust the rotation angle of the valve core in the diverter, and then adjust the output pressure oil flow of the corresponding branch pipeline. When the handle is released after the adjustment, the slide rod automatically rebounds under the elastic force of the spring, so that the card strip on the fixed plate re-engages with the card slot on the bottom surface of the bracket, and the knob is fixed by the plug rod to prevent the valve core in the diverter from being deflected by the internal pressure or external touch, thereby ensuring the stable delivery of the pressure oil flow in the two branch pipelines. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0019] Figure 1 This is a schematic diagram of the structure of a high-performance hydraulic jacking mechanism proposed by the utility model;

[0020] Figure 2 This is a schematic diagram of the splitter structure proposed by the utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the bracket, manual valve and locking component proposed by the utility model;

[0022] Figure 4 This is a schematic diagram of the locking component structure proposed by the utility model;

[0023] Figure 5 This is a schematic diagram of the structure of the manual valve proposed in the utility model;

[0024] Figure 6 This is a schematic diagram of the support structure proposed by the utility model;

[0025] In the figure: 1. hydraulic pump; 2. hydraulic cylinder; 3. main line; 4. branch line; 5. diverter; 6. manual valve; 61. valve stem; 62. knob; 63. guide hole; 7. bracket; 71. through hole; 72. slot; 73. turntable; 8. locking component; 81. slide rod; 82. fixed plate; 83. plug rod; 84. clamping strip; 85. spring; 86. pressure plate; 87. handle; 9. pressure gauge. DETAILED DESCRIPTION

[0026] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] See also Figure 1 and Figure 2The utility model provides a technical solution: a high-performance hydraulic jacking mechanism, including a hydraulic pump 1, a flow divider 5 and two hydraulic cylinders 2, the output end of the hydraulic pump 1 is connected to a main line 3, the input ends of the two hydraulic cylinders 2 are respectively connected to a branch line 4, the two branch lines 4 are connected to the main line 3 through the flow divider 5, and the flow divider 5 is provided with a manual valve 6 for adjusting the flow of the two branch lines 4. A single hydraulic pump 1 serves two or more hydraulic cylinders 2 at the same time, and the flow divider 5 distributes the pressure oil output from the main line 3 of the hydraulic pump 1 to different branch lines 4, thereby realizing the oil circuit connection between the single hydraulic pump 1 and the multiple hydraulic cylinders 2. The manual valve 6 can control the ratio of the pressure oil flow of the flow divider 5, so that the hydraulic oil pressure ratio of the multiple hydraulic cylinders 2 can be balanced, thereby realizing the force balance during the jacking of the aerial work platform, and the ratio of the pressure oil flow of each hydraulic cylinder 2 can also be selectively adjusted according to the load conditions of different hydraulic cylinders 2.

[0028] In addition, a bracket 7 is fixed on the top of the flow divider 5 in the present application, and a pair of locking components 8 for locking the two manual valve components 6 are arranged on the bracket 7, see Figure 3 and Figure 5 The manual valve member 6 includes a valve stem 61, the bottom end of the valve stem 61 is fixed to the valve core inside the diverter 5, a knob 62 is fixed to the top of the valve stem 61, and a plurality of guide holes 63 are opened on the knob 62. The valve core can be driven to rotate through the knob 62 to adjust the flow of the hydraulic oil.

[0029] See also Figure 3 and Figure 4 The locking component 8 includes a slide rod 81, a fixed plate 82 is fixed to the bottom end of the slide rod 81, and a plurality of plug rods 83 are fixed to the bottom surface of the fixed plate 82. The slide rod 81 is elastically connected to the bracket 7 through an elastic member, and the plug rods 83 on the bottom surface of the fixed plate 82 correspond one-to-one to the guide holes 63 on the knob 62 and slide in cooperation with each other vertically.

[0030] See also Figure 3 and Figure 6 The bracket 7 is provided with a through hole 71 for the slide bar 81 to pass vertically, and a plurality of annularly distributed clips 84 are fixed on the top surface of the fixed disk 82. The bottom surface of the bracket 7 is provided with a clip groove 72 engaged with the clip strip 84. The elastic member includes a spring 85. A pressure plate 86 is fixed to the top of the spring 85. The pressure plate 86 is fixed to the outside of the slide bar 81. A turntable 73 is fixed to the bottom end of the spring 85. The turntable 73 is rotatably connected to the bracket 7. The turntable 73 is an annular structure. The axis of the turntable 73 coincides with the through hole 71. The elastic force of the spring 85 causes the slide bar 81 to tend to slide upward, thereby causing the clip strip 84 on the fixed disk 82 to engage with the clip groove 72 on the bottom surface of the bracket 7, thereby realizing automatic fixation of the knob 62.

[0031] It should be noted that a handle 87 is fixed to the top of the slide bar 81 , and the handle 87 is perpendicular to the axial direction of the slide bar 81 , which saves effort and facilitates the rotation of the slide bar 81 .

[0032] Furthermore, the main pipeline 3 is provided with a pressure gauge 9 for detecting the pressure in the main pipeline 3 , and the two branch pipelines 4 may also be provided with pressure gauges 9 to detect the pressures in the two branch pipelines 4 respectively.

[0033] Furthermore, the flow divider 5 is a three-way interface, and the three-way interface is connected to the main pipeline 3 and the two branch pipelines 4 respectively.

[0034] The working principle and use process of the utility model are as follows: the application uses a single hydraulic pump 1 to simultaneously serve two or more hydraulic cylinders 2, and the diverter 5 distributes the pressure oil output from the main pipeline 3 of the hydraulic pump 1 to different branch pipelines 4, thereby realizing the oil circuit connection between the single hydraulic pump 1 and the multiple hydraulic cylinders 2. The manual valve 6 can control the ratio of the pressure oil flow of the diverter 5, so that the hydraulic oil pressure ratio of the multiple hydraulic cylinders 2 can be balanced, thereby realizing the force balance when the aerial work platform is lifted, and the ratio of the pressure oil flow of each hydraulic cylinder 2 can also be selectively adjusted according to the load conditions of different hydraulic cylinders 2;

[0035] The specific operation is as follows: by pressing the handle 87 downward, the pressure plate 86 on the slide bar 81 compresses the spring 85 and slides downward in the through hole 71, so that the card strip 84 on the fixed plate 82 is disengaged from the card slot 72 on the bottom surface of the bracket 7, and then the handle 87 can be rotated to make the slide bar 81 drive the fixed plate 82 to rotate, and the plug rod 83 on the bottom surface of the fixed plate 82 to turn the knob 62, so as to adjust the rotation angle of the valve core in the diverter 5, and then adjust the output pressure oil flow of the corresponding branch pipeline 4. When the handle 87 is released after the adjustment is completed, the slide bar 81 automatically rebounds under the elastic force of the spring 85, so that the card strip 84 on the fixed plate 82 is re-engaged with the card slot 72 on the bottom surface of the bracket 7, and the knob 62 is fixed by the plug rod 83 to prevent the valve core in the diverter 5 from being deflected by the internal pressure or external touch, thereby ensuring the stable delivery of the pressure oil flow in the two branch pipelines 4.

[0036] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A high-performance hydraulic lifting mechanism, comprising a hydraulic pump (1), a flow divider (5) and two hydraulic cylinders (2), characterized in that: The output end of the hydraulic pump (1) is connected to a main pipeline (3), and the input ends of the two hydraulic cylinders (2) are respectively connected to branch pipelines (4). The two branch pipelines (4) are connected to the main pipeline (3) via a flow divider (5). The flow divider (5) is provided with a manual valve component (6) for adjusting the flow of the two branch pipelines (4). A bracket (7) is fixed to the top of the flow divider (5), and a pair of locking components (8) for locking the two manual valve components (6) are provided on the bracket (7).

2. A high performance hydraulic lifting mechanism according to claim 1, characterized in that: The manual valve member (6) comprises a valve stem (61), a knob (62) is fixed on the top of the valve stem (61), and a plurality of guide holes (63) are formed on the knob (62).

3. A high performance hydraulic lifting mechanism according to claim 2, characterized in that: The locking component (8) comprises a sliding rod (81), a fixing plate (82) is fixed to the bottom end of the sliding rod (81), a plurality of inserting rods (83) are fixed to the bottom surface of the fixing plate (82), and the sliding rod (81) is elastically connected to the bracket (7) via an elastic member.

4. A high performance hydraulic lifting mechanism according to claim 3, characterized in that: The insertion rods (83) on the bottom surface of the fixing plate (82) correspond to the guide holes (63) on the knob (62) one by one and are vertically slidably matched.

5. A high performance hydraulic lifting mechanism according to claim 3, characterized in that: The bracket (7) is provided with a through hole (71) for the slide bar (81) to pass vertically, a plurality of annularly distributed clamping strips (84) are fixed on the top surface of the fixed plate (82), and a clamping groove (72) is provided on the bottom surface of the bracket (7) to engage with the clamping strips (84).

6. A high performance hydraulic lifting mechanism according to claim 5, characterized in that: The elastic member comprises a spring (85), a pressure plate (86) is fixed to the top end of the spring (85), the pressure plate (86) is fixed outside the slide bar (81), and a rotating disk (73) is fixed to the bottom end of the spring (85), and the rotating disk (73) is rotatably connected to the bracket (7).

7. A high performance hydraulic lifting mechanism according to claim 6, characterized in that: The rotating disk (73) is an annular structure, and the axis of the rotating disk (73) coincides with the axis of the through hole (71).

8. A high performance hydraulic lifting mechanism according to claim 7, characterized in that: A handle (87) is fixed to the top end of the slide bar (81), and the handle (87) is arranged perpendicular to the axial direction of the slide bar (81).

9. A high performance hydraulic lifting mechanism according to claim 1, characterized in that: The main pipe (3) is provided with a pressure gauge (9) for detecting the pressure in the main pipe (3).

10. A high performance hydraulic jacking mechanism according to claim 1, characterized in that: The flow divider (5) is a three-way interface, and the three-way interface is respectively connected to the main pipeline (3) and the two branch pipelines (4).

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